JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV TRANSPORTATION ENGINEERING Previous Question Paper (July/August - 2023 - R16)
Note: i) Question paper consists of Part A, Part B.
ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions.
iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Mention different road network patterns.
Answer
Common road network patterns include the Rectangular or Block pattern, Radial or Star and Block pattern, Radial or Star and Circular pattern, Radial or Star and Grid pattern, and the Hexagonal pattern.
Define highway alignment.
Answer
Highway alignment is the position or layout of the center line of the highway on the ground. It consists of horizontal alignment (straight paths and curves) and vertical alignment (gradients and vertical curves) designed to ensure safe, economical, and efficient traffic movement.
What is stopping sight distance?
Answer
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Define superelevation.
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Define spot speed.
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What is condition diagram?
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What is channelization?
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Write any three advantages of a rotary
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Define CBR.
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What is overlay?
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Part B
Briefly describe about highway development in India.
Answer
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Explain the classification of roads according to third road development plan.
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Discuss the necessity of highway planning.
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Explain various engineering surveys needed for constructing a new highway.
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Derive an expression for calculating the stopping sight distance on a highway.
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The speeds of overtaking and overtaken vehicles are 70 and 40 kmph, respectively on a two way traffic road. If the acceleration of overtaking vehicle is 0.99 m/s2, calculate the safe overtaking sight distance.
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Derive and expression for finding length of transition curve on horizontal alignment of highways.
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The design speed of a highway is 80 kmph. There is a horizontal curve of radius 200m on a certain locality. Calculate the superelevation needed to maintain this speed. If the maximum superelevation of 0.07 is not to be exceeded, calculate the maximum allowable speed on this horizontal curve as it is not possible to increase the radius. Safe limit of transverse co-efficient of friction is 0.15.
Answer
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Explain various types of road traffic signs, with neat sketches.
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What are the objectives of traffic volume studies?
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What are the various causes of road accidents? Explain 3-E measures for reducing road accidents.
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What are the advantages and disadvantages of traffic signals?
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What are the objectives of channelization?
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Mention the advantages and disadvantages of traffic rotary.
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Explain various types of grade separated intersections.
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Illustrate different factors affecting the design of a rotary intersection.
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Explain design of overlay by Benkleman beam method.
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Explain CBR method of flexible pavement design.
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Develop the Webster suggested method for rigid pavement design.
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Explain the pavement overlay design method.
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